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A treatise on gear wheels (1904)

Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 37

An illustration from A treatise on gear wheels, 1904, leaf 37
59.—INVOLUTE GEARS WITH LESS THANFIVE UNEQUAL TEETH. If we drop the condition that the pitchline mus-t be equally divided into tooth andspace arcs, we can make gears of three and offour teeth work with external gears by themethod of (65). The failing case of Fig. 44may be corrected by widening the…

Gearing

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